Tree damage and mortality measurements across seven ForestGEO plots in the tropics between Oct 2016 and Mar 2023
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This dataset contains annual records (raw data) on tree survival and structural completeness of 36,524 trees (2,467 species) collected across 29 censuses in seven tropical forests distributed across the Neotropics (Amacayacu, Colombia; Barro Colorado Island (BCI), Panamá; Yasuní, Ecuador) and Asia (Fushan, Taiwan; Huai Kha Khaeng (HKK), Thailand; Khao Chong (KC), Thailand; Pasoh, Malaysia). This dataset was used to compare aboveground biomass loss via damage to living trees relative to total AGB loss (mortality + damage). Data is contained within a single CSV file.Variable definitions: site: name of the ForestGEO plot; stemID.ams: Unique ID for the stem in the annual mortality surveys (ams); treeID.ams: Unique ID for the tree in the ams; date.full.census: date of the previous full census of the plot, format: YYYY-MM-DD; dbh.full.census: diameter at the breast height (dbh in mm) measured during the previous full census of the plot; home: height of measurement of dbh (in m); meanWD: species-level wood density (g cm-3); date.ams: date of the ams, format: YYYY-MM-DD; status: survival status of the tree (A: alive; D: dead; NF: not found; "?": unknown); H_considering_damage: living length of the main axis in meters; provides an estimate of the amount of remaining living tissues along the main axis of the stem (e.g., the height of breakage or the height discounting wood decay); b: the remaining proportion of branch volume within the living length (b∈[0,1]). ; weights.ind: frequency of the [size class x species] bins within the forest plot relative to their frequency in the sample. It is necessary to extrapolate estimates to the whole plot. This dataset was originally published on the NGEE Tropics Archive and is being mirrored on ESS-DIVE for long-term archival Please see the NGT0201_acknowledgements.txt file for a full listing of dataset acknowledgements.
本数据集包含36524株树木(隶属于2467个物种)的年度原始记录,记录内容涵盖树木存活状态与结构完整性。相关数据采集自7处热带森林的29次普查,这些森林分布于新热带区(哥伦比亚阿马卡亚库、巴拿马巴罗科罗拉多岛(BCI)、厄瓜多尔亚苏尼)与亚洲区域(中国台湾福山、泰国Huai Kha Khaeng(HKK)、泰国Khao Chong(KC)、马来西亚Pasoh)。 本数据集被用于对比活树受损导致的地上生物量(aboveground biomass, AGB)损失与总地上生物量损失(包含树木死亡与活树受损两类情况)的占比。所有数据存储于单个CSV文件中。 变量说明如下: - site:森林动态监测样地(ForestGEO plot)名称 - stemID.ams:年度死亡调查(annual mortality surveys, ams)中样木的唯一标识符 - treeID.ams:年度死亡调查中单株树木的唯一标识符 - date.full.census:上一次全样地普查的日期,格式为YYYY-MM-DD - dbh.full.census:上一次全样地普查时测得的胸径(diameter at breast height, dbh),单位为毫米 - home:胸径测量高度(单位:米) - meanWD:物种水平的木材密度(单位:g·cm⁻³) - date.ams:年度死亡调查的日期,格式为YYYY-MM-DD - status:树木存活状态(A:存活;D:死亡;NF:未找到;"?":未知) - H_considering_damage:主茎的存活长度(单位:米),用于估算茎干主轴线剩余活组织占比(例如断干高度或扣除木材腐朽后的存活高度) - b:存活长度范围内的枝条体积剩余占比(b∈[0,1]) - weights.ind:森林样地内[径级×物种]分组的样本频率相对于其在全样地中的频率,用于将估算结果外推至整个样地 本数据集最初发布于NGEE Tropics档案馆,并在ESS-DIVE平台进行镜像以实现长期归档。完整的数据集致谢清单请参阅NGT0201_acknowledgements.txt文件。




